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105篇 您的检索式:作者名="Keith Andrews"
    题名 作者 年代 出处 被引量
1牧草细胞壁:瘤胃内降解(英文)显示文摘牧草细胞壁在瘤胃内降解主要是瘤胃微生物起作用。本综述概略地介绍了牧草细胞壁降解所涉及的以细菌为主的微生物,细胞壁多糖分解所需的酶,细胞壁降解模型以及细胞壁降解的限制因素。孙学钊 Simone O. Hoskin Keith N. Joblin Ian G. Andrew Philip J. Harris 盛亦兵 2007草地学报2007,15,4:5
2A deep convolutional neural network for real-time full profile analysis of big powder diffraction data显示文摘We present Parameter Quantification Network(PQ-Net),a regression deep convolutional neural network providing quantitative analysis of powder X-ray diffraction patterns from multi-phase systems.The network is tested against simulated and experimental datasets of increasing complexity with the last one being an X-ray diffraction computed tomography dataset of a multi-phase Ni-Pd/CeO_(2)-ZrO_(2)/Al_(2)O_(3) catalytic material system consisting of ca.20,000 diffraction patterns.It is shown that the network predicts accurate scale factor,lattice parameter and crystallite size maps for all phases,which are comparable to those obtained through full profile analysis using the Rietveld method,also providing a reliable uncertainty measure on the results.The main advantage of PQNet is its ability to yield these results orders of magnitude faster showing its potential as a tool for real-time diffraction data analysis during in situ/operando experiments.Hongyang Dong Keith T.Butler Dorota Matras Stephen W.T.Price Yaroslav Odarchenko Rahul Khatry Andrew Thompson Vesna Middelkoop Simon D.M.Jacques Andrew M.Beale Antonis Vamvakeros 2021npj Computational Materials2021,,1:5
3Further compatibility tests of the entomopathogenic fungus Lecanicillium muscarium with conventional insecticide products for control of sweetpotato whitefly, Bemisia tabaci on poinsettia plants显示文摘为鸡蛋的控制和甘薯白人的第二个中间形态阶段为 24 h 跟随直接暴露到杀虫药剂 Majestik,水花油, Agri-50E, Savona 和天王卫四的 entomopathogenic 真菌 Lecanicillium muscarium 的孢子萌芽上的效果飞, Bemisia tabaci,被决定。到 Agri-50E 和天王卫四的暴露被可接受的孢子萌芽跟随。L 的传染性率。一品红叶子上的 muscarium 也面对杀虫药剂的干燥残余被调查。B 的控制的没有重要有害效果 on the levels。tabaci 与用于没有残余的叶子的真菌相比被记录。有真菌的化学药品 Savona,水花油和 Majestik 的顺序的申请都生产了第二中间形态 B 的死亡。超过 90% 的 tabaci。有 L 的这些化学药品的加入。muscarium 进为 B 的综合防治法节目。tabaci 被讨论。Andrew G. S. Cuthbertson Lisa F. Blackburn Phil Northing Weiqi Luo Raymond J. C. Cannon Keith F. A. Waiters 2008Insect Science2008,15,4:5
4The integrated use of chemical insecticides and the entomopathogenic nematode, Steinemema carpocapsae (Nematoda: Steinernematidae), for the control of sweetpotato whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)显示文摘化学杀虫药剂的集成和 entomopathogenic 线虫 Steinernema carpocapsae (Wesier ) 的易传染的少年(Nematoda:Steinernematidae ) 到香甜的土豆白人苍蝇的控制第二中间形态, Bemisia tabaci Gennadius (半翅类:Aleyrodidae ) 被调查。用沙生物鉴定, S 的直接暴露的效果。为到到街郎 mellonella 幼虫的传染性上的四杀虫药剂(spiromesifen, thiacloprid, imidacloprid 和 pymetrozine ) 的地率冲淡的 24 h 的 carpocapsae 被测试。尽管除了 spiromesifen,测试的所有化学药品生产了可接受的线虫传染性率,他们都是显著地不到水控制。杀虫药剂处理的效果(spiromesifen, thiacloprid 和 pymetrozine 和土壤的干燥残余 imidacloprid 淋湿) 在对 B 的线虫的功效上。tabaci 也被调查。在有 thiacloprid 和 spiromesifen 的联合的线虫给了更高的 B。tabaci 死亡(86.5% 和 94.3% 分别地) 与独自使用线虫相比(75.2%) 在西红柿植物上。在 B 没有重要差别。tabaci 死亡当与独自使用化学药品相比与线虫一起使用化学药品 imidacloprid, pymetrozine 和 spiromesifen 时。然而,与线虫在联合使用 thiacloprid 生产了显著地更高的 B。tabaci 死亡与独自使用化学药品比。S 的集成。carpocapsae 和这些化学代理人进为 B 的控制的当前的综合害虫管理计划。tabaci 被讨论。Andrew G. S. Cuthbertson James J. Mathers Phil Northing Anthony J. Prickett Keith F. A. Waiters 2008Insect Science2008,15,5:3
5Interactive labelling of a multivariate dataset for supervised machine learning using linked visualisations,clustering,and active learning显示文摘Supervised machine learning techniques require labelled multivariate training datasets.Many approaches address the issue of unlabelled datasets by tightly coupling machine learning algorithms with interactive visualisations.Using appropriate techniques,analysts can play an active role in a highly interactive and iterative machine learning process to label the dataset and create meaningful partitions.While this principle has been implemented either for unsupervised,semi-supervised,or supervised machine learning tasks,the combination of all three methodologies remains challenging.In this paper,a visual analytics approach is presented,combining a variety of machine learning capabilities with four linked visualisation views,all integrated within the mVis(multivariate Visualiser)system.The available palette of techniques allows an analyst to perform exploratory data analysis on a multivariate dataset and divide it into meaningful labelled partitions,from which a classifier can be built.In the workflow,the analyst can label interesting patterns or outliers in a semi-supervised process supported by active learning.Once a dataset has been interactively labelled,the analyst can continue the workflow with supervised machine learning to assess to what degree the subsequent classifier has effectively learned the concepts expressed in the labelled training dataset.Using a novel technique called automatic dimension selection,interactions the analyst had with dimensions of the multivariate dataset are used to steer the machine learning algorithms.A real-world football dataset is used to show the utility of mVis for a series of analysis and labelling tasks,from initial labelling through iterations of data exploration,clustering,classification,and active learning to refine the named partitions,to finally producing a high-quality labelled training dataset suitable for training a classifier.The tool empowers the analyst with interactive visualisations including scatterplots,parallel coordinates,similarity maps for records,and a new similarity map for partitions.Mohammad Chegini Jürgen Bernard Philip Berger Alexei Sourin Keith Andrews Tobias Schreck 2019Visual Informatics2019,3,1:3
6High school sports programs differentially impact participation by sex显示文摘背景:研究表明,参加体育活动可降低儿童和青少年肥胖的风险。学校是促进儿童和青少年参加体育活动的理想环境,但目前尚不清楚体育活动的'获得'和'选择'如何影响学生的参与度,也不清楚学校体育课的特点对学生参与体育的影响是否存在性别差异。本研究旨在评价高中体育运动项目的特点,并确定这些体育课程对男女生参与运动队的影响程度。方法:用电话采访的方式纵向调查了1,244名新罕布什尔州和佛蒙特州的学生。学生自述他们小学至高中阶段参与运动队的情况。通过调查高中职员了解体育机会。在本研究中,'体育机会'是指每100名学生所对应的学校提供的体育项目种类《选择)和学校提供的体育种类中不限制参加人数的体育项目的比例(获得)。结果:约70%的儿童参加了至少一个体育运动队,男生为73%,女生为66%。研究发现在性别和两个体育机会变量之间存在显著交互影响。控制小学生参与体育活动和其他协变量后,发现如果学校不限制最受欢迎的体育项目的参与人数,男生会参加更多的体育运动队(RR=1.12,p<0.01)。相反,如果学校提供广泛的体育项目,女生会参加更多的体育运动队(RR=1 47,p<0.001)。结论:前人研究表明,参加体育活动能带来许多健康效益。对公共卫生工作包括预防肥胖而言,学校体育课可能是一个重要而有效但未被充分利用的对象。要使青少年参加更多的体育活动,就应综合考虑学校体育项目的获得和选择。学校可运用不同策略,促使男生和女生更多地参加体育活动。Keith M. Drake Meghan R. Longacre Todd MacKenzie Linda J. Titus Michael L. Beach Andrew G. Rundle Madeline A. Dalton 2015Journal of Sport and Health Science2015,4,3:3
7Pancreatic Ductal Adenocarcinoma: Is There a Survival Difference for R1 Resections Versus Locally Advanced Unresectable Tumors? What Is a “True” R0 Resection?显示文摘Ioannis T. Konstantinidis Andrew L. Warshaw Jill N. Allen Lawrence S. Blaszkowsky Carlos Fernandez-del Castillo Vikram Deshpande Theodore S. Hong Eunice L. Kwak Gregory Y. Lauwers David P. Ryan Jennifer A. Wargo Keith D. Lillemoe Cristina R. Ferrone 2013Annals of Surgery2013,,4:3
8A systematic review of the performance of the model for end‐stage liver disease (MELD) in the setting of liver transplantation显示文摘Evangelos Cholongitas Laura Marelli Vibhakorn Shusang Marco Senzolo Keith Rolles David Patch Andrew K. Burroughs 2006Liver Transpl2006,,7:2
9Phase-II Study of Gemcitabine and Cisplatin in Patients with Metastatic Biliary and Gallbladder Cancer显示文摘Jeffrey A. Meyerhardt Andrew X. Zhu Keith Stuart David P. Ryan Lawrence Blaszkowsky Nicole Lehman Craig C. Earle Matthew H. Kulke Pankaj Bhargava Charles S. Fuchs 2008Digestive Diseases and Sciences2008,,2:2
10Lymphoepithelial cysts and cystic lymphangiomas: Underrecognized benign cystic lesions of the pancreas显示文摘AIM: To identify their diagnostic and prognostic clinical characteristics in a large series.METHODS: Retrospective review of clinicopathologic and imaging characteristics of patients diagnosed with lymphoepithelial cysts and cystic lymphangiomas of the pancreas at Massachusetts General Hospital.RESULTS: Twelve patients were identified between 1/1/1997 and 8/1/2007. Their median age was 55.5 years(range 19-78 years), and 6 were females. The le-sion was incidentally discovered in half of the patients.Contrast enhanced computed tomography demonstrat-ed that the cysts had thin walls, without calcifications, pancreatic duct dilation or pancreatic parenchyma inva-sion. Endoscopic ultrasound with fine needle aspiration(EUS/FNA) confirmed the diagnosis of a lymphoepithe-lial cyst in 3 patients, one of whom was spared an op-eration and continues to do well after 6 years. Eleven patients had a resection: 3 pancreaticoduodenecto-mies, 7 distal pancreatectomies, and 1 enucleation. The median size of the cysts was 3 cm(range 2-20 cm). At a median follow-up of 57 mo no recurrences or other pancreas-related conditions occurred.CONCLUSION: Lymphoepithelial cysts and cystic lymphangiomas of the pancreas can be diagnosed with a combination of contrast-enhanced computed tomog-raphy scans and EUS/FNA. If the lesion is asymptom-atic, an operation might be avoided.Ioannis T Konstantinidis Avinash Kambadakone Onofrio A Catalano Dushyant V Sahani Vikram Deshpe David G Forcione Jennifer A Wargo Carlos Fernandez-del Castillo Keith D Lillemoe Andrew L Warshaw Cristina R Ferrone 2014World Journal of Gastrointestinal Surgery2014,6,7:2
11Pancreaticopleuralfistula:etiology,treatmentandlong-termfollow-up显示文摘BACKGROUND:Pancreaticopleural fistula(PPF) are uncommon.Complex multidisciplinary treatment is required due to nutritional compromise and sepsis.This is the first description of long-term follow-up of patients with PPF.METHODS:Eleven patients with PPF treated at a specialist unit were identified.Causation,investigation,treatment and outcomes were recorded.RESULTS:Pancreatitis was the etiology of the PPF in 9 patients,and in the remaining 2 the PPF developed following distal pancreatectomy.Cross-sectional imaging demonstrated the site of duct disruption in 10 cases,with endoscopic retrograde cholangiopancreatography identifying the final case.Suppression of pancreatic exocrine secretion and percutaneous drainage formed the mainstay of treatment.Five cases resolved following pancreatic duct stent insertion and three patients required surgical treatment for established empyema.There were no complications.In all cases that resolved there has been no recurrence of PPF over a median follow-up of 50 months(range 15-62).CONCLUSIONS:PPF is an uncommon event complicating pancreatitis or pancreatectomy;pancreatic duct disruption is the common link.A step-up approach consisting of minimally invasive techniques treats the majority with surgery needed for refractory sepsis.Keith J Roberts Maria Sheridan Gareth Morris-Stiff Andrew M Smith 2012Hepatobiliary & Pancreatic Diseases International2012,11,2:2
12Resveratrol Ameliorates Aging-Related Metabolic Phenotypes by Inhibiting cAMP Phosphodiesterases显示文摘Sung-Jun Park Faiyaz Ahmad Andrew Philp Keith Baar Tishan Williams Haibin Luo Hengming Ke Holger Rehmann Ronald Taussig Alexandra L. Brown Myung K. Kim Michael A. Beaven Alex B. Burgin Vincent Manganiello Jay H. Chung 2012Cell2012,,3:2
13Pancreatic ductal adenocarcinoma: Long-term survival does not equal cure显示文摘Cristina R. Ferrone Rafael Pieretti-Vanmarcke Jordan P. Bloom Hui Zheng Jackye Szymonifka Jennifer A. Wargo Sarah P. Thayer Gregory Y. Lauwers Vikram Deshpande Mari Mino-Kenudson Carlos Fernández-del Castillo Keith D. Lillemoe Andrew L. Warshaw 2012Surgery2012,,:2
14Composite variable formulations for express shipment service network design 显示文摘Armacost Andrew P Barnhart Cynthia Ware Keith A 2002Transportation Science2002,36,:1
15Validation and Implementation of Targeted Capture and Sequencing for the Detection of Actionable Mutation, Copy Number Variation, and Gene Rearrangement in Clinical Cancer Specimens显示文摘Colin C. Pritchard Stephen J. Salipante Karen Koehler Christina Smith Sheena Scroggins Brent Wood David Wu Ming K. Lee Suzanne Dintzis Andrew Adey Yajuan Liu Keith D. Eaton Renato Martins Kari Stricker Kim A. Margolin Noah Hoffman Jane E. Churpek Jonathan 2014The Journal of Molecular Diagnostics2014,,1:1
16Lymphoepithelial cysts of the pancreas:a management dilemma显示文摘Pancreatic lymphoepithelial cysts(LECs) are rare,benign lesions that are typically unexpected post-operative pathological findings. We aimed to review clinical, radiological and pathological features of LECs that may allow their preoperative diagnosis. Histopathology databases of two large pancreatic units were searched to identify LECs and notes reviewed to determine patient demographic details, mode of presentation, investigations, treatment and outcome. Five male and one female patients were identified. Their median age was 60 years. Lesions were identified on computed tomography performed for abdominal pain in two patients, and were incidentally observed in four patients. Five LECs were located in the tail and one in the body of the pancreas, with a median cyst size of 5 cm. Obtaining cyst fluid was difficult and a largely acellular aspirate was yielded. The pre-operative diagnosis was mucinous cystic neoplasm in all patients. This series of patients were treated distal pancreatectomy and splenectomy. A retrospective review of radiological examinations suggested that LECs have a relatively low signal on T2 imaging and a high signal intensity on T1 weighted images. LECs appear more common in elderly males, and are typically incidental, large, unilocular cysts. Close attention to signal intensity on MRI may allow preoperative diagnosis of these lesions.Julie Martin Keith J Roberts Maria Sheridan Gavin A Falk Daniel Joyce R Matthew Walsh Andrew M Smith Gareth Morris-Stiff 2014Hepatobiliary & Pancreatic Diseases International2014,13,5:1
17BAI 3, CDX 2 and VIL 1: a panel of three antibodies to distinguish small cell from large cell neuroendocrine lung carcinomas显示文摘Muhammad F Bari Helen Brown Andrew G Nicholson Keith M Kerr John R Gosney William A Wallace Irshad Soomro Salli Muller Danielle Peat Jonathan D Moore Lesley A Ward Maxim B Freidin Eric Lim Manu Vatish David R J Snead 2014Histopathology2014,,:1
18Toll-Like Receptor-4 Promotes the Development of Colitis-Associated Colorectal Tumors显示文摘Masayuki Fukata Anli Chen Arunan S. Vamadevan Jason Cohen Keith Breglio Suneeta Krishnareddy David Hsu Ruliang Xu Noam Harpaz Andrew J. Dannenberg Kotha Subbaramaiah Harry S. Cooper Steven H. Itzkowitz Maria T. Abreu 2007Gastroenterology2007,,6:1
19Functional and structural diversity of the human Dickkopf gene family显示文摘Valery E. Krupnik John D. Sharp Chian Jiang Keith Robison Troy W. Chickering Lakshmi Amaravadi Diane E. Brown Deborah Guyot Gail Mays Kevin Leiby Belle Chang Thao Duong Andrew D.J. Goodearl David P. Gearing Sergei Y. Sokol Sean A. McCarthy 1999Gene1999,,2:1
20The future of distributed models: Model calibration and uncertainty prediction 显示文摘Keith Beven Andrew Binley 1992Hydrological Processes1992,6,3:1
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